Example usage for com.google.gwt.aria.client Roles getTreeRole

Introduction

In this page you can find the example usage for com.google.gwt.aria.client Roles getTreeRole.

Prototype

public static TreeRole getTreeRole() 

Source Link

Usage

From source file:com.vaadin.client.ui.SuperTreeConnector.java

License:Apache License

@Override
public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
    if (!isRealUpdate(uidl)) {
        return;//from   w  w w  .ja va 2s. c  o  m
    }

    getWidget().rendering = true;

    getWidget().client = client;

    if (uidl.hasAttribute("partialUpdate")) {
        handleUpdate(uidl);
        getWidget().rendering = false;
        return;
    }

    getWidget().paintableId = uidl.getId();

    getWidget().immediate = getState().immediate;

    getWidget().disabled = !isEnabled();
    getWidget().readonly = isReadOnly();

    getWidget().dragMode = uidl.hasAttribute("dragMode") ? uidl.getIntAttribute("dragMode") : 0;

    getWidget().isNullSelectionAllowed = uidl.getBooleanAttribute("nullselect");

    if (uidl.hasAttribute("alb")) {
        getWidget().bodyActionKeys = uidl.getStringArrayAttribute("alb");
    }

    // Context menu selection
    if (contextMenuSelection) {
        getWidget().rendering = false;
        contextMenuSelection = false;
        return;
    }

    getWidget().body.clear();
    // clear out any references to nodes that no longer are attached
    getWidget().clearNodeToKeyMap();
    tooltipMap.clear();

    SuperTreeWidget.TreeNode childTree = null;
    UIDL childUidl = null;
    for (final Iterator<?> i = uidl.getChildIterator(); i.hasNext();) {
        childUidl = (UIDL) i.next();
        if ("actions".equals(childUidl.getTag())) {
            updateActionMap(childUidl);
            continue;
        } else if ("-ac".equals(childUidl.getTag())) {
            getWidget().updateDropHandler(childUidl);
            continue;
        }
        childTree = getWidget().new TreeNode();
        getConnection().getVTooltip().connectHandlersToWidget(childTree);
        updateNodeFromUIDL(childTree, childUidl, 1);
        getWidget().body.add(childTree);
        childTree.addStyleDependentName("root");
        childTree.childNodeContainer.addStyleDependentName("root");
    }
    if (childTree != null && childUidl != null) {
        boolean leaf = !childUidl.getTag().equals("node");
        childTree.addStyleDependentName(leaf ? "leaf-last" : "last");
        childTree.childNodeContainer.addStyleDependentName("last");
    }
    final String selectMode = uidl.getStringAttribute("selectmode");
    getWidget().selectable = !"none".equals(selectMode);
    getWidget().isMultiselect = "multi".equals(selectMode);

    if (getWidget().isMultiselect) {
        Roles.getTreeRole().setAriaMultiselectableProperty(getWidget().getElement(), true);

        if (BrowserInfo.get().isTouchDevice()) {
            // Always use the simple mode for touch devices that do not have
            // shift/ctrl keys (#8595)
            getWidget().multiSelectMode = MultiSelectMode.SIMPLE;
        } else {
            getWidget().multiSelectMode = MultiSelectMode.valueOf(uidl.getStringAttribute("multiselectmode"));
        }
    } else {
        Roles.getTreeRole().setAriaMultiselectableProperty(getWidget().getElement(), false);
    }

    getWidget().selectedIds = uidl.getStringArrayVariableAsSet("selected");

    // Update lastSelection and focusedNode to point to *actual* nodes again
    // after the old ones have been cleared from the body. This fixes focus
    // and keyboard navigation issues as described in #7057 and other
    // tickets.
    if (getWidget().lastSelection != null) {
        getWidget().lastSelection = getWidget().getNodeByKey(getWidget().lastSelection.key);
    }

    if (getWidget().focusedNode != null) {

        Set<String> selectedIds = getWidget().selectedIds;

        // If the focused node is not between the selected nodes, we need to
        // refresh the focused node to prevent an undesired scroll. #12618.
        if (!selectedIds.isEmpty() && !selectedIds.contains(getWidget().focusedNode.key)) {
            String keySelectedId = selectedIds.iterator().next();

            SuperTreeWidget.TreeNode nodeToSelect = getWidget().getNodeByKey(keySelectedId);

            getWidget().setFocusedNode(nodeToSelect);
        } else {
            getWidget().setFocusedNode(getWidget().getNodeByKey(getWidget().focusedNode.key));
        }
    }

    if (getWidget().lastSelection == null && getWidget().focusedNode == null
            && !getWidget().selectedIds.isEmpty()) {
        getWidget().setFocusedNode(getWidget().getNodeByKey(getWidget().selectedIds.iterator().next()));
        getWidget().focusedNode.setFocused(false);
    }

    // IE8 needs a hack to measure the tree again after update
    Util.forceIE8Redraw(getWidget().getElement());

    getWidget().rendering = false;

}

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From source file:com.vaadin.client.ui.SuperTreeWidget.java

License:Apache License

public SuperTreeWidget() {
    super();/*w w w.  j  a va  2  s.c o m*/
    setStyleName(CLASSNAME);

    Roles.getTreeRole().set(body.getElement());
    add(body);

    addFocusHandler(this);
    addBlurHandler(this);

    /*
     * Listen to context menu events on the empty space in the tree
     */
    sinkEvents(Event.ONCONTEXTMENU);
    addDomHandler(new ContextMenuHandler() {
        @Override
        public void onContextMenu(ContextMenuEvent event) {
            handleBodyContextMenu(event);
        }
    }, ContextMenuEvent.getType());

    /*
     * Firefox auto-repeat works correctly only if we use a key press
     * handler, other browsers handle it correctly when using a key down
     * handler
     */
    if (BrowserInfo.get().isGecko()) {
        addKeyPressHandler(this);
    } else {
        addKeyDownHandler(this);
    }

    /*
     * We need to use the sinkEvents method to catch the keyUp events so we
     * can cache a single shift. KeyUpHandler cannot do this. At the same
     * time we catch the mouse down and up events so we can apply the text
     * selection patch in IE
     */
    sinkEvents(Event.ONMOUSEDOWN | Event.ONMOUSEUP | Event.ONKEYUP);

    /*
     * Re-set the tab index to make sure that the FocusElementPanel's
     * (super) focus element gets the tab index and not the element
     * containing the tree.
     */
    setTabIndex(0);
}

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From source file:com.vaadin.client.ui.SuperTreeWidget.java

License:Apache License

/**
 * Sets the node currently in focus/*w  w  w .j  ava  2  s. c  o  m*/
 *
 * @param node
 *            The node to focus or null to remove the focus completely
 * @param scrollIntoView
 *            Scroll the node into view
 */
public void setFocusedNode(TreeNode node, boolean scrollIntoView) {
    // Unfocus previously focused node
    if (focusedNode != null) {
        focusedNode.setFocused(false);

        Roles.getTreeRole().removeAriaActivedescendantProperty(focusedNode.getElement());
    }

    if (node != null) {
        node.setFocused(true);
        Roles.getTreeitemRole().setAriaSelectedState(node.getElement(), SelectedValue.TRUE);

        /*
         * FIXME: This code needs to be changed when the keyboard navigation
         * doesn't immediately trigger a selection change anymore.
         * 
         * Right now this function is called before and after the Tree is
         * rebuilt when up/down arrow keys are pressed. This leads to the
         * problem, that the newly selected item is announced too often with
         * a screen reader.
         * 
         * Behaviour is different when using the Tree with and without
         * screen reader.
         */
        if (node.key.equals(lastNodeKey)) {
            Roles.getTreeRole().setAriaActivedescendantProperty(getFocusElement(), Id.of(node.getElement()));
        } else {
            lastNodeKey = node.key;
        }
    }

    focusedNode = node;

    if (node != null && scrollIntoView) {
        /*
         * Delay scrolling the focused node into view if we are still
         * rendering. #5396
         */
        if (!rendering) {
            node.scrollIntoView();
        } else {
            Scheduler.get().scheduleDeferred(new Command() {
                @Override
                public void execute() {
                    focusedNode.scrollIntoView();
                }
            });
        }
    }
}

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From source file:com.vaadin.client.ui.tree.TreeConnector.java

License:Apache License

@Override
public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
    if (!isRealUpdate(uidl)) {
        return;/*from ww w. j  a  v a2 s . c  om*/
    }

    getWidget().rendering = true;

    getWidget().client = client;

    if (uidl.hasAttribute("partialUpdate")) {
        handleUpdate(uidl);

        // IE8 needs a hack to measure the tree again after update
        WidgetUtil.forceIE8Redraw(getWidget().getElement());

        getWidget().rendering = false;
        return;
    }

    getWidget().paintableId = uidl.getId();

    getWidget().immediate = getState().immediate;

    getWidget().disabled = !isEnabled();
    getWidget().readonly = isReadOnly();

    getWidget().dragMode = uidl.hasAttribute("dragMode") ? uidl.getIntAttribute("dragMode") : 0;

    getWidget().isNullSelectionAllowed = uidl.getBooleanAttribute("nullselect");
    getWidget().isHtmlContentAllowed = uidl.getBooleanAttribute(TreeConstants.ATTRIBUTE_HTML_ALLOWED);

    if (uidl.hasAttribute("alb")) {
        getWidget().bodyActionKeys = uidl.getStringArrayAttribute("alb");
    }

    getWidget().body.clear();
    // clear out any references to nodes that no longer are attached
    getWidget().clearNodeToKeyMap();
    tooltipMap.clear();

    TreeNode childTree = null;
    UIDL childUidl = null;
    for (final Iterator<?> i = uidl.getChildIterator(); i.hasNext();) {
        childUidl = (UIDL) i.next();
        if ("actions".equals(childUidl.getTag())) {
            updateActionMap(childUidl);
            continue;
        } else if ("-ac".equals(childUidl.getTag())) {
            getWidget().updateDropHandler(childUidl);
            continue;
        }
        childTree = getWidget().new TreeNode();
        getConnection().getVTooltip().connectHandlersToWidget(childTree);
        updateNodeFromUIDL(childTree, childUidl, 1);
        getWidget().body.add(childTree);
        childTree.addStyleDependentName("root");
        childTree.childNodeContainer.addStyleDependentName("root");
    }
    if (childTree != null && childUidl != null) {
        boolean leaf = !childUidl.getTag().equals("node");
        childTree.addStyleDependentName(leaf ? "leaf-last" : "last");
        childTree.childNodeContainer.addStyleDependentName("last");
    }
    final String selectMode = uidl.getStringAttribute("selectmode");
    getWidget().selectable = !"none".equals(selectMode);
    getWidget().isMultiselect = "multi".equals(selectMode);

    if (getWidget().isMultiselect) {
        Roles.getTreeRole().setAriaMultiselectableProperty(getWidget().getElement(), true);

        if (BrowserInfo.get().isTouchDevice()) {
            // Always use the simple mode for touch devices that do not have
            // shift/ctrl keys (#8595)
            getWidget().multiSelectMode = MultiSelectMode.SIMPLE;
        } else {
            getWidget().multiSelectMode = MultiSelectMode.valueOf(uidl.getStringAttribute("multiselectmode"));
        }
    } else {
        Roles.getTreeRole().setAriaMultiselectableProperty(getWidget().getElement(), false);
    }

    getWidget().selectedIds = uidl.getStringArrayVariableAsSet("selected");

    // Update lastSelection and focusedNode to point to *actual* nodes again
    // after the old ones have been cleared from the body. This fixes focus
    // and keyboard navigation issues as described in #7057 and other
    // tickets.
    if (getWidget().lastSelection != null) {
        getWidget().lastSelection = getWidget().getNodeByKey(getWidget().lastSelection.key);
    }

    if (getWidget().focusedNode != null) {

        Set<String> selectedIds = getWidget().selectedIds;

        // If the focused node is not between the selected nodes, we need to
        // refresh the focused node to prevent an undesired scroll. #12618.
        if (!selectedIds.isEmpty() && !selectedIds.contains(getWidget().focusedNode.key)) {
            String keySelectedId = selectedIds.iterator().next();

            TreeNode nodeToSelect = getWidget().getNodeByKey(keySelectedId);

            getWidget().setFocusedNode(nodeToSelect);
        } else {
            getWidget().setFocusedNode(getWidget().getNodeByKey(getWidget().focusedNode.key));
        }
    }

    if (getWidget().lastSelection == null && getWidget().focusedNode == null
            && !getWidget().selectedIds.isEmpty()) {
        getWidget().setFocusedNode(getWidget().getNodeByKey(getWidget().selectedIds.iterator().next()));
        getWidget().focusedNode.setFocused(false);
    }

    // IE8 needs a hack to measure the tree again after update
    WidgetUtil.forceIE8Redraw(getWidget().getElement());

    getWidget().rendering = false;

}

---

From source file:com.vaadin.client.ui.VTree.java

License:Apache License

public VTree() {
    super();//from   www. j a va 2  s  .c  o  m
    setStyleName(CLASSNAME);

    Roles.getTreeRole().set(body.getElement());
    add(body);

    addFocusHandler(this);
    addBlurHandler(this);

    /*
     * Listen to context menu events on the empty space in the tree
     */
    sinkEvents(Event.ONCONTEXTMENU);
    addDomHandler(new ContextMenuHandler() {
        @Override
        public void onContextMenu(ContextMenuEvent event) {
            handleBodyContextMenu(event);
        }
    }, ContextMenuEvent.getType());

    /*
     * Firefox auto-repeat works correctly only if we use a key press
     * handler, other browsers handle it correctly when using a key down
     * handler
     */
    if (BrowserInfo.get().isGecko()) {
        addKeyPressHandler(this);
    } else {
        addKeyDownHandler(this);
    }

    /*
     * We need to use the sinkEvents method to catch the keyUp events so we
     * can cache a single shift. KeyUpHandler cannot do this. At the same
     * time we catch the mouse down and up events so we can apply the text
     * selection patch in IE
     */
    sinkEvents(Event.ONMOUSEDOWN | Event.ONMOUSEUP | Event.ONKEYUP);

    /*
     * Re-set the tab index to make sure that the FocusElementPanel's
     * (super) focus element gets the tab index and not the element
     * containing the tree.
     */
    setTabIndex(0);
}

---

From source file:com.vaadin.v7.client.ui.tree.TreeConnector.java

License:Apache License

@Override
public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
    if (!isRealUpdate(uidl)) {
        return;//from ww w  .jav a 2 s  .co  m
    }

    getWidget().rendering = true;

    getWidget().client = client;

    if (uidl.hasAttribute("partialUpdate")) {
        handleUpdate(uidl);

        getWidget().rendering = false;
        return;
    }

    getWidget().paintableId = uidl.getId();

    getWidget().immediate = getState().immediate;

    getWidget().disabled = !isEnabled();
    getWidget().readonly = isReadOnly();

    getWidget().dragMode = uidl.hasAttribute("dragMode") ? uidl.getIntAttribute("dragMode") : 0;

    getWidget().isNullSelectionAllowed = uidl.getBooleanAttribute("nullselect");
    getWidget().isHtmlContentAllowed = uidl.getBooleanAttribute(TreeConstants.ATTRIBUTE_HTML_ALLOWED);

    if (uidl.hasAttribute("alb")) {
        getWidget().bodyActionKeys = uidl.getStringArrayAttribute("alb");
    }

    getWidget().body.clear();
    // clear out any references to nodes that no longer are attached
    getWidget().clearNodeToKeyMap();
    tooltipMap.clear();

    TreeNode childTree = null;
    UIDL childUidl = null;
    for (final Iterator<?> i = uidl.getChildIterator(); i.hasNext();) {
        childUidl = (UIDL) i.next();
        if ("actions".equals(childUidl.getTag())) {
            updateActionMap(childUidl);
            continue;
        } else if ("-ac".equals(childUidl.getTag())) {
            getWidget().updateDropHandler(childUidl);
            continue;
        }
        childTree = getWidget().new TreeNode();
        getConnection().getVTooltip().connectHandlersToWidget(childTree);
        updateNodeFromUIDL(childTree, childUidl, 1);
        getWidget().body.add(childTree);
        childTree.addStyleDependentName("root");
        childTree.childNodeContainer.addStyleDependentName("root");
    }
    if (childTree != null && childUidl != null) {
        boolean leaf = !childUidl.getTag().equals("node");
        childTree.addStyleDependentName(leaf ? "leaf-last" : "last");
        childTree.childNodeContainer.addStyleDependentName("last");
    }
    final String selectMode = uidl.getStringAttribute("selectmode");
    getWidget().selectable = !"none".equals(selectMode);
    getWidget().isMultiselect = "multi".equals(selectMode);

    if (getWidget().isMultiselect) {
        Roles.getTreeRole().setAriaMultiselectableProperty(getWidget().getElement(), true);

        if (BrowserInfo.get().isTouchDevice()) {
            // Always use the simple mode for touch devices that do not have
            // shift/ctrl keys (#8595)
            getWidget().multiSelectMode = MultiSelectMode.SIMPLE;
        } else {
            getWidget().multiSelectMode = MultiSelectMode.valueOf(uidl.getStringAttribute("multiselectmode"));
        }
    } else {
        Roles.getTreeRole().setAriaMultiselectableProperty(getWidget().getElement(), false);
    }

    getWidget().selectedIds = uidl.getStringArrayVariableAsSet("selected");

    // Update lastSelection and focusedNode to point to *actual* nodes again
    // after the old ones have been cleared from the body. This fixes focus
    // and keyboard navigation issues as described in #7057 and other
    // tickets.
    if (getWidget().lastSelection != null) {
        getWidget().lastSelection = getWidget().getNodeByKey(getWidget().lastSelection.key);
    }

    if (getWidget().focusedNode != null) {

        Set<String> selectedIds = getWidget().selectedIds;

        // If the focused node is not between the selected nodes, we need to
        // refresh the focused node to prevent an undesired scroll. #12618.
        if (!selectedIds.isEmpty() && !selectedIds.contains(getWidget().focusedNode.key)) {
            String keySelectedId = selectedIds.iterator().next();

            TreeNode nodeToSelect = getWidget().getNodeByKey(keySelectedId);

            getWidget().setFocusedNode(nodeToSelect);
        } else {
            getWidget().setFocusedNode(getWidget().getNodeByKey(getWidget().focusedNode.key));
        }
    }

    if (getWidget().lastSelection == null && getWidget().focusedNode == null
            && !getWidget().selectedIds.isEmpty()) {
        getWidget().setFocusedNode(getWidget().getNodeByKey(getWidget().selectedIds.iterator().next()));
        getWidget().focusedNode.setFocused(false);
    }

    getWidget().rendering = false;

}

---

From source file:com.vaadin.v7.client.ui.VTree.java

License:Apache License

/**
 * Sets the node currently in focus//from w  w w.jav a2 s  .  c  om
 *
 * @param node
 *            The node to focus or null to remove the focus completely
 * @param scrollIntoView
 *            Scroll the node into view
 */
public void setFocusedNode(TreeNode node, boolean scrollIntoView) {
    // Unfocus previously focused node
    if (focusedNode != null) {
        focusedNode.setFocused(false);

        Roles.getTreeRole().removeAriaActivedescendantProperty(focusedNode.getElement());
    }

    if (node != null) {
        node.setFocused(true);
        Roles.getTreeitemRole().setAriaSelectedState(node.getElement(), SelectedValue.TRUE);

        /*
         * FIXME: This code needs to be changed when the keyboard navigation
         * doesn't immediately trigger a selection change anymore.
         *
         * Right now this function is called before and after the Tree is
         * rebuilt when up/down arrow keys are pressed. This leads to the
         * problem, that the newly selected item is announced too often with
         * a screen reader.
         *
         * Behaviour is different when using the Tree with and without
         * screen reader.
         */
        if (node.key.equals(lastNodeKey)) {
            Roles.getTreeRole().setAriaActivedescendantProperty(getFocusElement(), Id.of(node.getElement()));
        } else {
            lastNodeKey = node.key;
        }
    }

    focusedNode = node;

    if (node != null && scrollIntoView) {
        /*
         * Delay scrolling the focused node into view if we are still
         * rendering. #5396
         */
        if (!rendering) {
            node.scrollIntoView();
        } else {
            Scheduler.get().scheduleDeferred(new Command() {
                @Override
                public void execute() {
                    focusedNode.scrollIntoView();
                }
            });
        }
    }
}

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From source file:org.rest.client.ui.desktop.MenuViewImpl.java

License:Apache License

public MenuViewImpl() {
    initWidget(uiBinder.createAndBindUi(this));
    sinkEvents(Event.ONMOUSEDOWN | Event.ONCLICK | Event.KEYEVENTS);
    Roles.getTreeRole().set(getElement());
}

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